Climate Beer Goggles | Watts Up With That?

Climate Beer Goggles | Watts Up With That?
"There’s a new entry in the competition for the top spot in the “Climate Change Ruins Everything” competition. 
This is the claim that “Severe climate events could cause shortages in the global beer supply”, as discussed here on WUWT.

YIKES! If true, that is more serious than sea level rise … they explain the danger as follows:

The study warns that increasingly widespread and severe drought and heat may cause substantial decreases in barley yields worldwide, affecting the supply used to make beer, and ultimately resulting in “dramatic” falls in beer consumption and rises in beer prices.

So I figured that I should take a look at “barley yields worldwide”. 

I mean, if increasing heat causes “substantial decreases” in barley yields, we should see it in the record.

I went to one of my favorite datasets, the FAOSTAT database maintained by the Food and Agricultural Organization. 

It has production, yield, and area harvested for most crops since 1961.

 Here is their record of the barley yield over that period.

Since the global average temperature has increased over the period, I gotta say that it hasn’t had any visible effect on the global barley yield.

Is there a correlation between global barley yield and global temperature?..."

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